基于CAESAR Ⅱ的膨胀节开裂分析与解决方案  

Analysis and Solution of Expansion Joint Cracking Based on CAESAR Ⅱ

作　　者：朱德凤 ZHU De-feng(Shanghai Donghua Environment Engineering Co.,Ltd,Shanghai 200135,China)

机构地区：[1]上海东化环境工程有限公司,上海200135

出　　处：《管道技术与设备》2021年第4期36-39,共4页Pipeline Technique and Equipment

摘　　要：文中针对某化工厂管道试压时膨胀节被拉伸开裂的现象,采用CAESAR Ⅱ应力分析软件进行建模计算,分析了膨胀节开裂失效的原因,从调整支架和膨胀节选型两方面给出解决方案。结果表明,膨胀节内压推力可以通过支架约束也可通过带约束的膨胀节约束。Aiming at the phenomenon of expansion joints being stretched and cracked during pressure test in a chemical plant,CAESAR Ⅱ software was used for modeling and calculation.The reasons for the cracking and failure of expansion joints were analyzed,and solutions were given from two aspects:bracket adjustment and expansion joint selection.The result shows that the internal pressure thrust of expansion joint can be restrained not only by bracket but also by expansion joint with restraints.

关 键 词：膨胀节 内压推力 应力分析 CAESARⅡ 支架 开裂 

分 类 号：TB472[一般工业技术—工业设计]